Proofing tools

http://www-lsu.lboro.ac.uk/staff/manuals/
OfXPResKit/three/intd05.htm

To enable additional languages:
1) Click Start, Programs, Microsoft Office Tools.
2) In the Microsoft Office Language Settings dialog, click the Enabled Languages tab.
3)Click the check boxes for the languages you wish to enable, then click OK.
If you choose to change the installation language instead of enabling additional languages, you make that change on this tab as well.

To change the installation languagevalue:
1) Click Start, Programs, Microsoft Office Tools.
2) In the Microsoft Office Language Settings dialog, click the Enabled Languages tab.
3) Change the value of Default version of Microsoft Office to the default language.
4) Close any open Office applications, and start (or restart) the application you want to use.

This link should give you all the necessary info. I think.
http://winservices.web.cern.ch/winservices/docs/Office/Proof/default.htm

Check this site. This should help
http://www.translation.net/msproofxp.html#languages

Top Dictionary 2003 1.5 2003 includes three programs: Top Dictionary, a personalized dictionary that looks up any word or phrase of up to 50 characters; Table Editor, which adds, deletes or edits words, phrases or definitions; and Translator, which translates words or phrases in both directions from your native language to/from another foreign language. $69 from topdictionary.hit.bg/.